· Advanced Technology&period; With Bluetooth4&period;1 technology&comma; this wireless sport headphone provides high quality bass music and built-in microphone ensures clear speech within 10m&period; Nano-coating technology protects the earbuds against sweat when you are doing sport&period;· Hands-free Calls & Ergonomic Design&period; Just press one button to answer&sol;reject&sol;redial calls&comma; you do not have to take out your cell phone from your pocket when running&period; Soft earhooks and earbud cushions with different sizes fit for different ear canals&period; Ergonomic design provides you maximum comfort and stability&comma; perfect for sports&sol;running&sol;exercise&period;· Strong Battery Endurance&period; Built-in 60mAh lithium-ion polymer battery&comma; up to 8 hours playing&sol;talking time and only 2 hours charging time&comma; enjoy longer music time during running with less charging time&period;· Wide Compatibility&period; Compatible with iPhone&comma; iPad&comma; iPod Touch&comma; Bluetooth-enabled Android Smartphones&comma; tablets&comma; music players and any devices with Bluetooth functions&period;· More Features&period; Support battery status display on IOS devices&period; Allowed to adjust volume&sol;previous or next songs&comma; play&sol;pause&comma; answer&sol;hang off&sol;reject&sol;redial calls&period; Support one- operating-two function&comma; which means it can connect to two mobile phones at the same time&period;Product DescriptionDescription&colon;With ergonomic design and sleek appearance&comma; this Bluetooth headphones is specially designed for sport&sol;running&sol;exercise&comma; features sweat-proof&comma; stable&comfortable&comma; dynamic sound&period;Awesome SoundWith CVC noise cancellation technology&comma; this Bluetooth headphone has awesome sound&comma; great for listening to music while doing sport&comma; motivate you to run faster&period;Wireless Control & Glossy AppearanceWireless control&comma; no need to plug into your cell phone&period; Bluetooth V4&period;1&comma; enjoy high speed &stable signal transmission at the range of 10m&period; UV finish surface let it display great glossiness&period;Anti-knotting DesignAre you annoyed with a tangle of wires&cords &quest; Each time you take out your headphone&comma; you have to spend much much time loosing them&period; If you buy this headphone&comma; there would be no such trouble&period; This headphone cord is compressed into flat shape which is not easy to knot&period;Built-in MicrophoneThe built-in microphone can transmit your voice via this headphone clearly&period; Answer calls freely&period;Specifications&colon;Product Type&colon; Bluetooth sport headsetBluetooth Version&colon; CSR 4&period;1Wireless Transmission Distance&colon; 10mPowered by&colon; USB charging cableBattery Capacity&colon; 60mAhCharging Time&colon; 2 hoursTalk&sol;play time&colon; 8-10 hoursSupport Hands-free Call&colon; YESPackage included&colon;1&ast;Bluetooth headphone4&ast;Ear cushions&lpar;medium&sol;large size&rpar;4&ast;Ear hooks&lpar;medium&sol;large size&rpar;1&ast;USB charging cable1&ast; User manual